小编use*_*365的帖子

我是初学者使用php cookies,我正在尝试使用cookie制作一个简单的登录和注销表单.一切都很好但是当我按下注销链接时我无法注销.并注销我必须从浏览器中删除cookie.

log_in页面

<?php
session_start();

if (isset($_COOKIE["Email"])){
    header("location: home.php");    
}
?>


<form method="post" action="log_in.php">   
<font size="6">Sign In</font>

Email Address: </b></font><input type="text" name="Email" id="email"  />  

password:  <input type="password" name="password" id="password"  />    

<input type="checkbox" name="rememberMe" value="1" id="check"/> Remember Me

<input type="submit" name="Login" id="sign" value="sign in" >

<?php 
include 'db.php';
if(isset($_POST['Login'])){
    $user_email = $_POST['Email'];  
    $password = $_POST['password'];

    $check_user = "SELECT * FROM user where user_email  = '$user_email' AND user_pass = '$password'";
    $run = mysql_query($check_user );

    if (mysql_num_rows($run) > 0){
        $_SESSION['Email']= $user_email;   

        $_SESSION['start'] = …